# Brake Cooling 737 vs 737 CSFF

The clearest difference is price: 737 CSFF at $2.99 against Brake Cooling 737's $3.99. Brake Cooling 737's advantage is iOS requirement (10.3 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Brake Cooling 737 costs $3.99 and 737 CSFF $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Brake Cooling 737 | 737 CSFF |
| --- | --- | --- |
| Price | $3.99 | **$2.99** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/737-csff/id1551516212/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 4 months |
| Monetization | — | Paid |
| Size | 15 MB | 11 MB |
| Requires iOS | **10.3** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Jaroslav Sterba](https://appshunter.io/developer/1485870956) | [Dan O'Leary](https://appshunter.io/developer/1177083778) |

## What reviewers say

### Brake Cooling 737

[App page](https://appshunter.io/ios/app/brake-cooling-737/id1485870957)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 737 CSFF

[App page](https://appshunter.io/ios/app/737-csff/id1551516212)

A visual guide to understanding Cold Soaked Fuel Frost (CSFF) on 737 aircraft wings. It references airline handbooks and Boeing FCOM guidance for educational purposes.

**Highlights:** Visual representation of CSFF scenarios, Study guide for 737 wing frost, References North American Airline Flight Handbook, Includes Boeing FCOM guidance, Educational tool for pilots

**In-app purchases:** none


## Frequently asked questions

### Is Brake Cooling 737 free?

Brake Cooling 737 costs $3.99, with no in-app purchases.

### Is 737 CSFF free?

737 CSFF costs $2.99, with no in-app purchases.

### Do Brake Cooling 737 or 737 CSFF have ads?

Neither Brake Cooling 737 nor 737 CSFF shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*